package c.x.jy.api.utils;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;

import c.x.jy.common.exception.RRException;

/**
 * Shiro工具类
 *
 * @author  
 */
public class ShiroUtils {

	public static Session getSession() {
		return SecurityUtils.getSubject().getSession();
	}

	public static Subject getSubject() {
		return SecurityUtils.getSubject();
	}
     /**
      * 
      * @return
      */
	//public static SysUserEntity getUserEntity() {
	//	return (SysUserEntity)SecurityUtils.getSubject().getPrincipal();
	//}

	//public static Long getUserId() {
	//	return getUserEntity().getUserId();
    //}

	public static void setSessionAttribute(Object key, Object value) {
		getSession().setAttribute(key, value);
	}

	public static Object getSessionAttribute(Object key) {
		return getSession().getAttribute(key);
	}

	public static boolean isLogin() {
		return SecurityUtils.getSubject().getPrincipal() != null;
	}

	public static String getKaptcha(String key) {
		Object kaptcha = getSessionAttribute(key);
		if(kaptcha == null){
			throw new RRException("验证码已失效");
		}
		getSession().removeAttribute(key);
		return kaptcha.toString();
	}

}
